Wider social issues, such as a lack of local services and loneliness were also highlighted by many.

Paul Farmer, chief executive of mental health charity Mind, said: “Changes to the benefits system in recent years, and austerity generally, have had a devastating impact on the lives of many people with mental health problems.”

Will Higham, associate director of campaigns and public affairs at Rethink Mental Illness, added: “If we’re to have a benefits system that is fit for purpose, it is vital that staff are educated on what it means to live with mental illness and that they take the time to understand and care about those who use it.”

‘The process is cruel’

Denise Martin, 49, from Bristol, is one person who says the economic climate has made her struggles with mental illness more difficult, causing her sleeplessness and anxiety.

She has had mental health problems since she was 16 and has now been diagnosed with bipolar disorder and also struggles with her mobility because of spinal problems and chronic pain.

She has had experience of applying for benefits since 2011 when she had to give up work as a mental health nurse.

She currently gets employment support allowance and personal independence payments for her physical problems.

But she said she has found benefits staff difficult to deal with and insensitive to her condition.

“I can’t tell you how stressful it is.

“When you get a strongly worded letter in large letters saying, ‘If you do not get all the evidence in a month, your benefit will stop,’ it throws everything off-kilter and gives you a feeling of hopelessness.